Amyxin has wide application in treatment of viral infections. At treatment of Chlamydia trachomatis infections amyxin is applied necessarily in a complex with antibiotics. Amyxin was given to 26 patients with chronic genital Chlamydia trachomatis infection according to a standard technique. The patients also received doxycicline monohydrate (doxy-M) as antibacterial therapy. During treatment amyxin showed good tolerance without side effects. The clinical effect (complete removal of clinical symptoms) was observed in 25 (96.2±3.8%) patients. The microbiological effect of treatment (elimination of C. trachomatis) is marked in 24 (92.3±5.2%) patients. Thus, the complex treatment of the patients with amyxin in complex with antibiotics has shown high efficiency.